Low profile industrial luminaire

Abstract

A low profile HID light fixture comprising; a housing, means for mounting said housing, an optical assembly having a lamp contained therein, an electrical assembly having a ballast contained therein and means for mounting said optical assembly and said optical assembly and said electrical assembly in side by side relationship directly beneath said housing.

We claim: 
     
       1. A low profile HID light fixture comprising; a housing, means for mounting said housing, an optical assembly having a lamp contained therein, an electrical assembly having a ballast contained therein and means for mounting said optical assembly and said electrical assembly in side by side relationship directly beneath said housing affording both independent and simultaneous access to each assembly for maintenance and replacement purposes, wherein said means for mounting said optical assembly in side by side relationship beneath said housing includes tracks formed in said housing and plates fixed to said optical assembly and said electrical assembly, said plates being adapted to ride in said tracks formed in said housing, and wherein each plate is mounted at ends of side housing opposite the other respective plate. 
     
     
       2. A low profile HID light fixture as recited in claim 1 wherein said track formed in said housing are shaped so as to permit said plates to slide in and out of said housing like a drawer. 
     
     
       3. A low profile HID light fixture as recited in claim 2 wherein said means for mounting said optical assembly and said electrical assembly means includes pivot means to allow the optical assembly and the electrical assembly to swing down while still being supported by said housing when said plates fixed to said optical assembly and said electrical assembly are slid out from contact with said tracks formed in said housing. 
     
     
       4. A low profile HID light fixture as recited in claim 3 wherein said pivot means includes hinges and posts about which one swings relative to the other. 
     
     
       5. A low profile HID light fixture as recited in claim 4 wherein said posts are fixed to said housing and said hinges are formed on said plates. 
     
     
       6. A low profile HID light fixture as recited in claim 5 wherein said electrical assembly and said optical assembly are each locked into place on said housing by a quarter turn fastener engaging a locking nut on a tab which is an integral part of the housings with the respective tabs and quarter turn fasteners offset to assure said electrical assembly and said optical assembly are installed on the correct sides. 
     
     
       7. A low profile HID light fixture as recited in claim 1 including means for balancing the weight of the fixture when it is hung. 
     
     
       8. A low profile HID light fixture as recited in claim 7 wherein said means for balancing said light fixture includes an adapter connected to a hanger said adapter being mounted on said housing in such a way so that its position on said housing can be adjusted. 
     
     
       9. A low profile HID light fixture as recited in claim 1 including two rows of tabs formed in the top of said housing and a flat sheet of high temperature polymer bowed to be installed between said two rows to form a wire access cover.